44 lines
1.2 KiB
PHP
44 lines
1.2 KiB
PHP
--TEST--
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Bug #72339 Integer Overflow in _gd2GetHeader() resulting in heap overflow
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--EXTENSIONS--
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gd
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--SKIPIF--
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<?php
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if (!function_exists("imagecreatefromgd2")) print "skip";
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if (!GD_BUNDLED) {
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if (version_compare(GD_VERSION, '2.2.2', '<')) {
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die("skip test requires GD 2.2.2 or higher");
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}
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if (version_compare(GD_VERSION, '2.3.3', '>=')) {
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die("skip test requires GD 2.3.2 or older");
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}
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}
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?>
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--FILE--
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<?php
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$fname = __DIR__ . DIRECTORY_SEPARATOR . "bug72339.gd";
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$fh = fopen($fname, "w");
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fwrite($fh, "gd2\x00");
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fwrite($fh, pack("n", 2));
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fwrite($fh, pack("n", 1));
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fwrite($fh, pack("n", 1));
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fwrite($fh, pack("n", 0x40));
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fwrite($fh, pack("n", 2));
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fwrite($fh, pack("n", 0x5AA0)); // Chunks Wide
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fwrite($fh, pack("n", 0x5B00)); // Chunks Vertically
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fwrite($fh, str_repeat("\x41\x41\x41\x41", 0x1000000)); // overflow data
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fclose($fh);
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$im = imagecreatefromgd2($fname);
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unlink($fname);
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?>
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--EXPECTF--
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Warning: imagecreatefromgd2(): Product of memory allocation multiplication would exceed INT_MAX, failing operation gracefully
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in %sbug72339.php on line %d
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Warning: imagecreatefromgd2(): "%sbug72339.gd" is not a valid GD2 file in %sbug72339.php on line %d
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